Pippa Middleton and Geri arrived in similar scarlet dresses. Photos: Getty and Rex
Both ladies donned ruby floor-sweepers with plunging necklines, but apparently didn't appear to be bothered as they chatted away at the high society bash held at the Park Plaza Westminster Bridge Hotel.
And they weren't the only ones with the idea... Prince William's ex-girlfriend Jecca Craig also donned an almost-identical floor-length red gown for the high-end event, where tables cost £1,950 each, with money going towards the Starlight Children's Foundation and the Lt Dougie Dalzell MC Memorial Trust, set up in memory of a British soldier killed in Afghanistan.
Princesses Beatrice and Eugenie and Chelsy Davy also joined the royal crowd. Photos: Rex
What do you think wore red better? Leave a comment below...
See our favourite Pippa style moments here:
- Pippa Middleton's best style moments<p> The maid of honour stunned the nation as she walked into Westminster Abbey in this jaw-droppingly beautiful bridesmaid dress designed by Sarah Burton for Alexander McQueen.</p>

- Pippa Middleton's best style moments<p> Miss Middleton continued to wow in her second show-stopping dress of the royal wedding; a gorgeous Temperley gown.</p>

- Pippa Middleton's best style moments<p> Pippa dressed the part for the wedding of the Duke and Duchess of Northumberland's daughter, Lady Katie Percy, in February earlier this year. Is that a spot of fake tan we can see on those bare legs?</p>

- Pippa Middleton's best style moments<p> She looked pretty in pink at the Royal Parks Charity Gala in 2008.</p>

- Pippa Middleton's best style moments<p> Pippa showed off her perfect polo outfit at a charity match in 2009; undone hair, a flirty, figure-hugging dress and matching peep-toe pumps.</p>

- Pippa Middleton's best style moments<p> Pippa turned heads at the Boodles Boxing Ball in striking red dress.</p>

- Pippa Middleton's best style moments<p> Pippa Middleton attends the autumn dinner and All Saints party in aid for Too Many Women.</p>

- Pippa Middleton's best style moments<p> Pippa spotted shopping in London.</p>

- Pippa Middleton's best style moments<p> Pippa Middleton at Temperley London Show during London Fashion Week S/S 2012</p>

- Pippa Middleton's best style moments<p> The 28-year-old kept warm in a classic white coat, skinny black jeans and leather gloves for the launch of Somerset House ice rink, hosted by Tiffany & Co.</p>

